This is a great guesthouse, close to the BTS and Central Pier. If you're familiar with Thailand (we weren't) you could easily take the BTS from the airport and then it's a 15 minute walk to the guesthouse. Otherwise take a taxi and be sure to have the phone number handy.
We checked in very late at night and they were able to accommodate us which was a huge plus. The room was clean and the WiFi worked well during our stay. Overall it was a good experience and we had no complaints.